CDL GENERAL KNOWLEDGE TEST (TEXAS) - PRACTICE TEST
31.
To make the brakes work, air brakes use:
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hydraulic air.
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nitrogen.
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compressed air.
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carbon monoxide.
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32.
You should downshift in advance before:
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entering a tunnel.
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starting down a hill or entering a curve.
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entering the highway.
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crossing a bridge.
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33.
Make sure you have enough tread on your tires. You must have at least ________ tread depth in every major groove on front tires.
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2/32 inch
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1 inch
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16/32-inch
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4/32 inch
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34.
You should be aware that many car drivers closely follow large vehicles especially:
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when crossing a bridge.
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on the highway.
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in the city.
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in bad weather.
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35.
When backing a trailer, turn the wheel right to make the cab go ________ and the trailer go ________.
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right; right
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right; left
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left; left
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left; right
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36.
The 2 special conditions where you should downshift are:
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While going down hill and after finishing a curve.
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Before starting up a hill and before finishing a curve.
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Before starting up a hill and after finishing a curve.
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Before starting down a hill and before entering a curve.
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37.
Gross vehicle weight (GVW) is:
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the total weight of the trailer or trailers.
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the total weight of a single vehicle, except its load.
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the total weight of a single vehicle including its load.
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the total weight of the vehicle axle.
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38.
To use the controlled braking method in an emergency, you should:
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pump the brake pedal 3 times.
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apply the brakes when the wheels lock up.
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apply the brakes as hard as you can without locking the wheels.
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apply your brakes all the way, and release the brakes when the wheels lock up.
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39.
If you are stopped and found to have a blood alcohol concentration (BAC) below .04 percent:
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you'll be required to attend a substance abuse course.
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you will be arrested.
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you will be placed out of service for 24 hours.
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you will face a small fine.
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40.
To prevent drowsiness before a trip, you should:
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avoid medications that cause drowsiness.
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avoid driving with a passenger.
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drive with the windows rolled down.
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drink 2 cups of coffee.
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